Isn't this the decimal translation?:
542 / 6027
40 / 6027
47 / 46
Not sure where you get the Octal and Decimal from there. Might want to check the other two as well? (or maybe I'm just misunderstanding something, I dunno).
That is the octal translation (1 octal digit corresponds to 3 binary digits and is represented with numbers from 0 to 7 in decimal). There were some transcribing errors in the original.
The easiest way to get the decimal translation is to skip the octal and just convert the original binary into decimal directly: b010 010 -> b010010 -> 18.